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Pete, Electronic Engineer
Category: Camera and Video
Satisfied Customers: 17333
Experience:  Over 16 years of experience installing and repairing electronics.
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Have a nikon d4 the light that normally shows card is being

Customer Question

have a nikon d4 the green light that normally shows card is being read continues to flash and drains my battery when camera is off. this happened before and went away
Submitted: 1 year ago.
Category: Camera and Video
Customer: replied 1 year ago.
now it won't turn on until it sits for a while
Expert:  Pete replied 1 year ago.
I am Pete, and I'll be happy to assist with your question today.
A few things to try when you insert a fully charged battery and get the camera working again:
1. Remove the memory card
2. Try fitting a replacement memory card
3. Reset the camera to its default factory settings
4. Install updated firmware
If that does not help, then the memory card reader board is likely faulty and the camera will need to be returned to Nikon to have the board replaced.